57423909 has 24 divisors (see below), whose sum is σ = 85587840. Its totient is φ = 34123392.

The previous prime is 57423887. The next prime is 57423913. The reversal of 57423909 is 90932475.

It is not a de Polignac number, because 57423909 - 2⁷ = 57423781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57423929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16852 + ... + 19970.

It is an arithmetic number, because the mean of its divisors is an integer number (3566160).

Almost surely, 2^57423909 is an apocalyptic number.

It is an amenable number.

57423909 is a deficient number, since it is larger than the sum of its proper divisors (28163931).

57423909 is a wasteful number, since it uses less digits than its factorization.

57423909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177 (or 3158 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 57423909 is about 7577.8564911194. The cubic root of 57423909 is about 385.8018012080.

The spelling of 57423909 in words is "fifty-seven million, four hundred twenty-three thousand, nine hundred nine".